@startuml
sprite $book [48x48/16] {
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}


!define MATERIAL_BOOK(_alias) ENTITY(rectangle,black,book,_alias,MATERIAL BOOK)
!define MATERIAL_BOOK(_alias, _label) ENTITY(rectangle,black,book,_label, _alias,MATERIAL BOOK)
!define MATERIAL_BOOK(_alias, _label, _shape) ENTITY(_shape,black,book,_label, _alias,MATERIAL BOOK)
!define MATERIAL_BOOK(_alias, _label, _shape, _color) ENTITY(_shape,_color,book,_label, _alias,MATERIAL BOOK)
skinparam folderBackgroundColor<<MATERIAL BOOK>> White
@enduml